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  • How can I further improve the quality of my home videos?

    - by Bob
    So now that I have found out how to deinterlace my videos, I am wondering if there is other software out there that can further help improve the quality of my videos. Some other problems I have noticed is when you move the camera side to side very quickly you can notice tearing in the the picture. That is the top half of the frame doesn't line up with the bottom half, it appears that the bottom half is shifted to the right or left depending on which way the camera is moving. Shaky camera hand is also a problem in some videos. I don't expect any software to be able to correct these problems 100%, especially the shaky hand. I know that using a tripod or something of the sorts is the best way to prevent the shakes, but for preexsiting videos what are the best solutions I can use?

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  • PHP GD - How can I modify my Thumbnail Creator to crop portrait images from the center?

    - by frank
    Here is my current code: $image = 'img.jpg'; $source = imagecreatefromjpeg($image); list($origWidth, $origHeight) = getimagesize($image); $imgH = 75; $imgW = $origWidth / $origHeight * $imgH; $thumb = imagecreatetruecolor($imgW, $imgH); imagecopyresampled($thumb, $source, 0, 0, 0, 0, $imgW, $imgH, $origWidth, $origHeight); This allows me to output an image with a fixed height of 75 pixels. What I would like to do is have a constant image size of 99x75 pixels. Portrait images that don't fit into this will be cropped from the center (so the center of the original remains the center of the thumbnail - if that makes sense). How can I do this?

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  • How do I do high quality scaling of a image?

    - by pbhogan
    I'm writing some code to scale a 32 bit RGBA image in C/C++. I have written a few attempts that have been somewhat successful, but they're slow and most importantly the quality of the sized image is not acceptable. I compared the same image scaled by OpenGL (i.e. my video card) and my routine and it's miles apart in quality. I've Google Code Searched, scoured source trees of anything I thought would shed some light (SDL, Allegro, wxWidgets, CxImage, GD, ImageMagick, etc.) but usually their code is either convoluted and scattered all over the place or riddled with assembler and little or no comments. I've also read multiple articles on Wikipedia and elsewhere, and I'm just not finding a clear explanation of what I need. I understand the basic concepts of interpolation and sampling, but I'm struggling to get the algorithm right. I do NOT want to rely on an external library for one routine and have to convert to their image format and back. Besides, I'd like to know how to do it myself anyway. :) I have seen a similar question asked on stack overflow before, but it wasn't really answered in this way, but I'm hoping there's someone out there who can help nudge me in the right direction. Maybe point me to some articles or pseudo code... anything to help me learn and do. Here's what I'm looking for: 1. No assembler (I'm writing very portable code for multiple processor types). 2. No dependencies on external libraries. 3. I am primarily concerned with scaling DOWN, but will also need to write a scale up routine later. 4. Quality of the result and clarity of the algorithm is most important (I can optimize it later). My routine essentially takes the following form: DrawScaled( uint32 *src, uint32 *dst, src_x, src_y, src_w, src_h, dst_x, dst_y, dst_w, dst_h ); Thanks! UPDATE: To clarify, I need something more advanced than a box resample for downscaling which blurs the image too much. I suspect what I want is some kind of bicubic (or other) filter that is somewhat the reverse to a bicubic upscaling algorithm (i.e. each destination pixel is computed from all contributing source pixels combined with a weighting algorithm that keeps things sharp. EXAMPLE: Here's an example of what I'm getting from the wxWidgets BoxResample algorithm vs. what I want on a 256x256 bitmap scaled to 55x55. And finally: the original 256x256 image

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  • Is it possible to center an image on both axis inside a div?

    - by Noor
    I have a script that loads in a div with images running jQuery Cycle Lite Plugin. I got the tip that I could us the "after" function in that plugin to make changes to the picture each time the image is refreshed. So I wrote this: $("#display div").css({ margin: "0 auto", "text-align": "center", }); The html built like this: <div id="display"> <div id="slideshow1"> <img ... /> </div> </div> This isn't working, whats wrong? ( this is supposed to center it horizontally, i need to center it vertically to )..

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  • How to center drawableTop and text vertically on the Button in Android?

    - by Gaks
    I have the Button defined as follows: <Button android:drawableTop="@drawable/ico" android:gravity="center" android:id="@+id/StartButton2x2" android:text="@string/Widget2x2StartBtnLabel" android:layout_width="0dip" android:layout_height="fill_parent" android:layout_weight="1" android:background="@drawable/widgetbtn_bg" /> The problem is that 'drawableTop' image is aligned to the top border of the Button view. I would like to center it (together with text label) vertically on the button. 'android:gravity' seems to work only on text label. It does not affect 'drawableTop' positioning. I was able to center it vertically using 'android:paddingTop' - but that does not seem to be a good idea. I guess it would not work properly on different screen resolution/size.

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  • How do you get Windows Mobile Device Center to detect a Windows Phone 7 Series emulator?

    - by sweeney
    Hello, I'm running some tests and need to be able to get Windows Phone 7 Series emulator synced with an exchange account or local Outlook account via the Device Center. I'm using the unlocked version of the emulator so that i actually have a reasonable set of software on the phone to work with. When the emulator launches i expect the Device Center to detect it and start syncing (or prompt me for settings). This does not happen. I've tried adjusting the Connection Settings (COM2 and DMA) in the Device Center with no luck. Is this possible? Has anyone done it? Thanks in advance!

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  • How to calculate a point with an given center, angle and radius?

    - by mystify
    In this SO question, someone asked for calculating an angle from three points. I need to do the opposite thing. I want to draw a clock, and I have tiny tick images. An art dude made 60 of them, each with an individual and accurate shadow. So there are 60 distinct images at 10x10 points in size, already correctly rotated in the center of that square. So every 6 degrees one tick image has to be placed. I would just need to calculate the x/y coordinate based on a center point, an radius and an angle. So I have: an center point an radius an angle Is there an easy way to calculate the x/y coordinate with this? Maybe cocoa-touch already has a useful function or method for this?

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  • Are there any good books on writing commercial quality software?

    - by Andy
    Hey, My background has been generally new technology demonstrators, which, well... demonstrate the latest technology and how it can be of use to a clients company. They use it for internal demos etc. Now my career has shiffed course a bit more into actual products, in particular software which runs in locations like museums as interactive pieces. Clearly, although the technology demonstrators had to be well coded etc, there wasn't as much emphasis as there is on my current work, which has to work, be highly configurable, probably multi-ligual and run constantly, without restarts. So my question is, now that I'm trying to up my coding quality and write more commercial applications, are there any books which discuss issues surrounding high quality commercial software? I currently have a copy of Code Complete 2nd Edition, which is excellent, but just wondering if there's any better, possibly more focused titles out there? Thanks a lot! Andy.

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  • The Incremental Architect&acute;s Napkin - #2 - Balancing the forces

    - by Ralf Westphal
    Originally posted on: http://geekswithblogs.net/theArchitectsNapkin/archive/2014/06/02/the-incremental-architectacutes-napkin---2---balancing-the-forces.aspxCategorizing requirements is the prerequisite for ecconomic architectural decisions. Not all requirements are created equal. However, to truely understand and describe the requirement forces pulling on software development, I think further examination of the requirements aspects is varranted. Aspects of Functionality There are two sides to Functionality requirements. It´s about what a software should do. I call that the Operations it implements. Operations are defined by expressions and control structures or calls to frameworks of some sort, i.e. (business) logic statements. Operations calculate, transform, aggregate, validate, send, receive, load, store etc. Operations are about behavior; they take input and produce output by considering state. I´m not using the term “function” here, because functions - or methods or sub-programs - are not necessary to implement Operations. Functions belong to a different sub-aspect of requirements (see below). Operations alone are not enough, though, to make a customer happy with regard to his/her Functionality requirements. Only correctly implemented Operations provide full value. This should make clear, why testing is so important. And not just manual tests during development of some operational feature, but automated tests. Because only automated tests scale when over time the number of operations increases. Without automated tests there is no guarantee formerly correct operations are still correct after more got added. To retest all previous operations manually is infeasible. So whoever relies just on manual tests is not really balancing the two forces Operations and Correctness. With manual tests more weight is put on the side of the scale of Operations. That might be ok for a short period of time - but in the long run it will bite you. You need to plan for Correctness in the long run from the first day of your project on. Aspects of Quality As important as Functionality is, it´s not the driver for software development. No software has ever been written to just implement some operation in code. We don´t need computers just to do something. All computers can do with software we can do without them. Well, at least given enough time and resources. We could calculate the most complex formulas without computers. We could do auctions with millions of people without computers. The only reason we want computers to help us with this and a million other Operations is… We don´t want to wait for the results very long. Or we want less errors. Or we want easier accessability to complicated solutions. So the main reason for customers to buy/order software is some Quality. They want some Functionality with a higher Quality (e.g. performance, scalability, usability, security…) than without the software. But Qualities come in at least two flavors: Most important are Primary Qualities. That´s the Qualities software truely is written for. Take an online auction website for example. Its Primary Qualities are performance, scalability, and usability, I´d say. Auctions should come within reach of millions of people; setting up an auction should be very easy; finding a suitable auction and bidding on it should be as fast as possible. Only if those Qualities have been implemented does security become relevant. A secure auction website is important - but not as important as a fast auction website. Nobody would want to use the most secure auction website if it was unbearably slow. But there would be people willing to use the fastest auction website even it was lacking security. That´s why security - with regard to online auction software - is not a Primary Quality, but just a Secondary Quality. It´s a supporting quality, so to speak. It does not deliver value by itself. With a password manager software this might be different. There security might be a Primary Quality. Please get me right: I don´t want to denigrate any Quality. There´s a long list of non-functional requirements at Wikipedia. They are all created equal - but that does not mean they are equally important for all software projects. When confronted with Quality requirements check with the customer which are primary and which are secondary. That will help to make good economical decisions when in a crunch. Resources are always limited - but requirements are a bottomless ocean. Aspects of Security of Investment Functionality and Quality are traditionally the requirement aspects cared for most - by customers and developers alike. Even today, when pressure rises in a project, tunnel vision will focus on them. Any measures to create and hold up Security of Investment (SoI) will be out of the window pretty quickly. Resistance to customers and/or management is futile. As long as SoI is not placed on equal footing with Functionality and Quality it´s bound to suffer under pressure. To look closer at what SoI means will help to become more conscious about it and make customers and management aware of the risks of neglecting it. SoI to me has two facets: Production Efficiency (PE) is about speed of delivering value. Customers like short response times. Short response times mean less money spent. So whatever makes software development faster supports this requirement. This must not lead to duct tape programming and banging out features by the dozen, though. Because customers don´t just want Operations and Quality, but also Correctness. So if Correctness gets compromised by focussing too much on Production Efficiency it will fire back. Customers want PE not just today, but over the whole course of a software´s lifecycle. That means, it´s not just about coding speed, but equally about code quality. If code quality leads to rework the PE is on an unsatisfactory level. Also if code production leads to waste it´s unsatisfactory. Because the effort which went into waste could have been used to produce value. Rework and waste cost money. Rework and waste abound, however, as long as PE is not addressed explicitly with management and customers. Thanks to the Agile and Lean movements that´s increasingly the case. Nevertheless more could and should be done in many teams. Each and every developer should keep in mind that Production Efficiency is as important to the customer as Functionality and Quality - whether he/she states it or not. Making software development more efficient is important - but still sooner or later even agile projects are going to hit a glas ceiling. At least as long as they neglect the second SoI facet: Evolvability. Delivering correct high quality functionality in short cycles today is good. But not just any software structure will allow this to happen for an indefinite amount of time.[1] The less explicitly software was designed the sooner it´s going to get stuck. Big ball of mud, monolith, brownfield, legacy code, technical debt… there are many names for software structures that have lost the ability to evolve, to be easily changed to accomodate new requirements. An evolvable code base is the opposite of a brownfield. It´s code which can be easily understood (by developers with sufficient domain expertise) and then easily changed to accomodate new requirements. Ideally the costs of adding feature X to an evolvable code base is independent of when it is requested - or at least the costs should only increase linearly, not exponentially.[2] Clean Code, Agile Architecture, and even traditional Software Engineering are concerned with Evolvability. However, it seems no systematic way of achieving it has been layed out yet. TDD + SOLID help - but still… When I look at the design ability reality in teams I see much room for improvement. As stated previously, SoI - or to be more precise: Evolvability - can hardly be measured. Plus the customer rarely states an explicit expectation with regard to it. That´s why I think, special care must be taken to not neglect it. Postponing it to some large refactorings should not be an option. Rather Evolvability needs to be a core concern for every single developer day. This should not mean Evolvability is more important than any of the other requirement aspects. But neither is it less important. That´s why more effort needs to be invested into it, to bring it on par with the other aspects, which usually are much more in focus. In closing As you see, requirements are of quite different kinds. To not take that into account will make it harder to understand the customer, and to make economic decisions. Those sub-aspects of requirements are forces pulling in different directions. To improve performance might have an impact on Evolvability. To increase Production Efficiency might have an impact on security etc. No requirement aspect should go unchecked when deciding how to allocate resources. Balancing should be explicit. And it should be possible to trace back each decision to a requirement. Why is there a null-check on parameters at the start of the method? Why are there 5000 LOC in this method? Why are there interfaces on those classes? Why is this functionality running on the threadpool? Why is this function defined on that class? Why is this class depending on three other classes? These and a thousand more questions are not to mean anything should be different in a code base. But it´s important to know the reason behind all of these decisions. Because not knowing the reason possibly means waste and having decided suboptimally. And how do we ensure to balance all requirement aspects? That needs practices and transparency. Practices means doing things a certain way and not another, even though that might be possible. We´re dealing with dangerous tools here. Like a knife is a dangerous tool. Harm can be done if we use our tools in just any way at the whim of the moment. Over the centuries rules and practices have been established how to use knifes. You don´t put them in peoples´ legs just because you´re feeling like it. You hand over a knife with the handle towards the receiver. You might not even be allowed to cut round food like potatos or eggs with it. The same should be the case for dangerous tools like object-orientation, remote communication, threads etc. We need practices to use them in a way so requirements are balanced almost automatically. In addition, to be able to work on software as a team we need transparency. We need means to share our thoughts, to work jointly on mental models. So far our tools are focused on working with code. Testing frameworks, build servers, DI containers, intellisense, refactoring support… That´s all nice and well. I don´t want to miss any of that. But I think it´s not enough. We´re missing mental tools, tools for making thinking and talking about software (independently of code) easier. You might think, enough of such tools already exist like all those UML diagram types or Flow Charts. But then, isn´t it strange, hardly any team is using them to design software? Or is that just due to a lack of education? I don´t think so. It´s a matter value/weight ratio: the current mental tools are too heavy weight compared to the value they deliver. So my conclusion is, we need lightweight tools to really be able to balance requirements. Software development is complex. We need guidance not to forget important aspects. That´s like with flying an airplane. Pilots don´t just jump in and take off for their destination. Yes, there are times when they are “flying by the seats of their pants”, when they are just experts doing thing intuitively. But most of the time they are going through honed practices called checklist. See “The Checklist Manifesto” for very enlightening details on this. Maybe then I should say it like this: We need more checklists for the complex businss of software development.[3] But that´s what software development mostly is about: changing software over an unknown period of time. It needs to be corrected in order to finally provide promised operations. It needs to be enhanced to provide ever more operations and qualities. All this without knowing when it´s going to stop. Probably never - until “maintainability” hits a wall when the technical debt is too large, the brownfield too deep. Software development is not a sprint, is not a marathon, not even an ultra marathon. Because to all this there is a foreseeable end. Software development is like continuously and foreever running… ? And sometimes I dare to think that costs could even decrease over time. Think of it: With each feature a software becomes richer in functionality. So with each additional feature the chance of there being already functionality helping its implementation increases. That should lead to less costs of feature X if it´s requested later than sooner. X requested later could stand on the shoulders of previous features. Alas, reality seems to be far from this despite 20+ years of admonishing developers to think in terms of reusability.[1] ? Please don´t get me wrong: I don´t want to bog down the “art” of software development with heavyweight practices and heaps of rules to follow. The framework we need should be lightweight. It should not stand in the way of delivering value to the customer. It´s purpose is even to make that easier by helping us to focus and decreasing waste and rework. ?

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  • Why MKMapView region is different than requested?

    - by Kamil
    Greetings! I'm saving map region into user defaults when my iPhone app is closing like this: MKCoordinateRegion region = mapView.region; [[NSUserDefaults standardUserDefaults] setDouble:region.center.latitude forKey:@"map.location.center.latitude"]; [[NSUserDefaults standardUserDefaults] setDouble:region.center.longitude forKey:@"map.location.center.longitude"]; [[NSUserDefaults standardUserDefaults] setDouble:region.span.latitudeDelta forKey:@"map.location.span.latitude"]; [[NSUserDefaults standardUserDefaults] setDouble:region.span.longitudeDelta forKey:@"map.location.span.longitude"]; When app launches again, i read those values back the same way, so that the user can see exactly the same map view as it was last time: MKCoordinateRegion region; region.center.latitude = [[NSUserDefaults standardUserDefaults] doubleForKey:@"map.location.center.latitude"]; region.center.longitude = [[NSUserDefaults standardUserDefaults] doubleForKey:@"map.location.center.longitude"]; region.span.latitudeDelta = [[NSUserDefaults standardUserDefaults] doubleForKey:@"map.location.span.latitude"]; region.span.longitudeDelta = [[NSUserDefaults standardUserDefaults] doubleForKey:@"map.location.span.longitude"]; NSLog([NSString stringWithFormat:@"Region read : %f %f %f %f", region.center.latitude, region.center.longitude, region.span.latitudeDelta, region.span.longitudeDelta]); [mapView setRegion:region]; NSLog([NSString stringWithFormat:@"Region on map: %f %f %f %f", mapView.region.center.latitude, mapView.region.center.longitude, mapView.region.span.latitudeDelta, mapView.region.span.longitudeDelta]); The region I read from user defaults is (not surprisingly) exactly the same as when it was saved. Notice that what is saved comes directly from the map, so it's not transformed in any way. I set it back on map with setRegion: method, but then it is different! Example results: Region read : 50.241110 8.891555 0.035683 0.042915 Region on map: 50.241057 8.891544 0.050499 0.054932 Does anybody know why this happens?

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  • latex padding / margin hell

    - by darren
    hi everyone I have been wrestling with a latex table for far too long. I need a table that has has centered headers, and body cells that contain text that may wrap around. Because of the wrap-around requirement, i'm using p{xxx} instead of l for specifying cell widths. The problem this causes is that cell contents are not left justified, so the look like spaced-out junk. To fix this problem I'm using \flushleft for each cell. This does left justify contents, but puts in a ton of white space above and below the contents of the cell. Is there a way to stop \flushleft (or \center for that matter) to stop adding copious amounts of verical whitespace? thanks \begin{landscape} \centering % using p{xxx} here to wrap long text instead of overflowing it \begin{longtable}{ | p{4cm} || p{3cm} | p{3cm} | p{3cm} | p{3cm} | p{3cm} |} \hline & % these are table headings. the \center is causing a ton of whitespace as well \begin{center} \textbf{HTC HD2} \end{center} & \begin{center} \textbf{Motorola Milestone} \end{center} & \begin{center} \textbf{Nokia N900} \end{center} & \begin{center} \textbf{RIM Blackberry Bold 9700} \end{center} & \begin{center} \textbf{Apple iPhone 3GS} \end{center} \\ \hline \hline % using flushleft here to left-justify, but again it is causing a ton of white space above and below cell contents. \begin{flushleft}OS / Platform \end{flushleft}& \begin{flushleft}Windows Mobile 6.5 \end{flushleft}& \begin{flushleft}Google Android 2.1 \end{flushleft}& \begin{flushleft}Maemo \end{flushleft}& \begin{flushleft}Blackberry OS 5.0 \end{flushleft}& \begin{flushleft}iPhone OS 3.1 \end{flushleft} \\ \hline

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  • Problems with CGPoint/touches event

    - by Jason
    I'm having some problems with storing variables from my touch events. The warning I get when I run this is that coord and icoord are unused, but I used them in the viewDidLoad implementation, is there a reason why this does not work? Any suggestions? #import "iGameViewController.h" @implementation iGameViewController @synthesize player; -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [[event allTouches] anyObject]; CGPoint icoord = [touch locationInView:touch.view]; } -(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [[event allTouches] anyObject]; CGPoint coord = [touch locationInView:touch.view]; } - (void)viewDidLoad { if (coord.x > icoord.x) { player.center = CGPointMake(player.center.x + 5, player.center.y); } if (coord.x < icoord.x) { player.center = CGPointMake(player.center.x - 5, player.center.y); } if (coord.y > icoord.y) { player.center = CGPointMake(player.center.x, player.center.y - 5); } if (coord.y < icoord.y) { player.center = CGPointMake(player.center.x, player.center.y + 5); } } Thanks.

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  • root issues in softwarecenter, synaptic and update manager

    - by user188977
    i have a notebook samsung ativ 2 and ubuntu 12.04 precise, cinnamon desktop. after logging in today my update manager, synaptic and ubuntu softwarecenter stopped working. synaptic i can only launch from terminal the others from panel.when choosing to update, nothing happens. same thing when trying to install programms from syn. or softw.center.when launching softwarec. from terminal i get: marcus@ddddddddd:~$ software-center 2013-11-10 22:30:46,206 - softwarecenter.ui.gtk3.app - INFO - setting up proxy 'None' 2013-11-10 22:30:46,217 - softwarecenter.db.database - INFO - open() database: path=None use_axi=True use_agent=True (software-center:4772): Gtk-WARNING **: Theme parsing error: softwarecenter.css:34:20: Not using units is deprecated. Assuming 'px'. (software-center:4772): Gtk-WARNING **: Theme parsing error: softwarecenter.css:34:22: Not using units is deprecated. Assuming 'px'. (software-center:4772): Gtk-WARNING **: Theme parsing error: softwarecenter.css:56:20: Not using units is deprecated. Assuming 'px'. (software-center:4772): Gtk-WARNING **: Theme parsing error: softwarecenter.css:56:22: Not using units is deprecated. Assuming 'px'. (software-center:4772): Gtk-WARNING **: Theme parsing error: softwarecenter.css:60:20: Not using units is deprecated. Assuming 'px'. (software-center:4772): Gtk-WARNING **: Theme parsing error: softwarecenter.css:60:22: Not using units is deprecated. Assuming 'px'. 2013-11-10 22:30:46,977 - softwarecenter.backend.reviews - WARNING - Could not get usefulness from server, no username in config file 2013-11-10 22:30:47,320 - softwarecenter.ui.gtk3.app - INFO - show_available_packages: search_text is '', app is None. 2013-11-10 22:30:48,057 - softwarecenter.db.pkginfo_impl.aptcache - INFO - aptcache.open() 2013-11-10 22:31:00,646 - softwarecenter.fixme - WARNING - logs to the root logger: '('/usr/share/software-center/softwarecenter/utils.py', 201, 'get_title_from_html')' 2013-11-10 22:31:00,645 - root - WARNING - failed to parse: '<div style="background-color: #161513; width:1680px; height:200px;">  <div style="background: url('/site_media/exhibits/2013/09/AAMFP_Leaderboard_700x200_1.jpg') top left no-repeat; width:700px; height:200px;"></div> </div>' ('ascii' codec can't encode character u'\xa0' in position 70: ordinal not in range(128)) 2013-11-10 22:31:02,268 - softwarecenter.db.update - INFO - skipping region restricted app: 'Comentarios Web' (not whitelisted) 2013-11-10 22:31:02,769 - softwarecenter.db.update - INFO - skipping region restricted app: 'reEarCandy' (not whitelisted) 2013-11-10 22:31:04,821 - softwarecenter.db.update - INFO - skipping region restricted app: 'Flaggame' (not whitelisted) 2013-11-10 22:31:05,622 - softwarecenter.db.update - INFO - skipping region restricted app: 'Bulleti d'esquerra de Calonge i Sant Antoni ' (not whitelisted) 2013-11-10 22:31:08,352 - softwarecenter.ui.gtk3.app - INFO - software-center-agent finished with status 0 2013-11-10 22:31:08,353 - softwarecenter.db.database - INFO - reopen() database 2013-11-10 22:31:08,353 - softwarecenter.db.database - INFO - open() database: path=None use_axi=True use_agent=True 2013-11-10 22:33:32,319 - softwarecenter.backend - WARNING - _on_trans_error: org.freedesktop.PolicyKit.Error.Failed: ('system-bus-name', {'name': ':1.72'}): org.debian.apt.install-or-remove-packages 2013-11-10 22:36:01,818 - softwarecenter.backend - WARNING - daemon dies, ignoring: <AptTransaction object at 0x48e4b40 (aptdaemon+client+AptTransaction at 0x645aaa0)> exit-failed 2013-11-10 22:36:01,820 - softwarecenter.db.pkginfo_impl.aptcache - INFO - aptcache.open()

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  • How to rotate a group of objects around a common center?

    - by user1662292
    I've made a model in 3D Studio Max 9. It consists of a variety of cubes, clyinders etc. In XNA I've imported the model okay and it shows correctly. However, when I apply rotation, each component in the model rotates around it's own centre. I want the model to rotate as a single unit. I've linked the components in 3D Max and they rotate as I want in Max. protected override void LoadContent() { spriteBatch = new SpriteBatch(GraphicsDevice); model = Content.Load<Model>("Models/Alien1"); } protected override void Update(GameTime gameTime) { camera.Update(1f, new Vector3(), graphics.GraphicsDevice.Viewport.AspectRatio); rotation += 0.1f; base.Update(gameTime); } protected override void Draw(GameTime gameTime) { GraphicsDevice.Clear(Color.CornflowerBlue); Matrix[] transforms = new Matrix[model.Bones.Count]; model.CopyAbsoluteBoneTransformsTo(transforms); Matrix worldMatrix = Matrix.Identity; Matrix rotationYMatrix = Matrix.CreateRotationY(rotation); Matrix translateMatrix = Matrix.CreateTranslation(location); worldMatrix = rotationYMatrix * translateMatrix; foreach (ModelMesh mesh in model.Meshes) { foreach (BasicEffect effect in mesh.Effects) { effect.World = worldMatrix * transforms[mesh.ParentBone.Index]; effect.View = camera.viewMatrix; effect.Projection = camera.projectionMatrix; effect.EnableDefaultLighting(); effect.PreferPerPixelLighting = true; } mesh.Draw(); } base.Draw(gameTime); } More Info: Rotating the object via it's properties works fine so I'm guessing there's something up with the code rather than with the object itself. Translating the object also causes the objects to get moved independently of each other rather than as a single model and each piece becomes spread around the scene. The model is in .X format.

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  • how can I change user permission settings for an application

    - by naftalimich
    I am trying to prevent the guest user from accessing software-center (I know it can't install anything, but I don't even want it to browse) The file is owned by root and in group root. I run: sudo chmod o= /usr/bin/software-center Afterwards I run ls -l and get the following output: lrwxrwxrwx 1 root root 40 Sep 10 14:28 /usr/bin/software-center -> ../share software- center/software-center The first part of the output indicates chmod didn't do anything and the second part I don't understand.

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  • How do I center a UIImageView within a full-screen UIScrollView?

    - by Sebastian Celis
    In my application, I would like to present the user with a full-screen photo viewer much like the one used in the Photos app. This is just for a single photo and as such should be quite simple. I just want the user to be able to view this one photo with the ability to zoom and pan. I have most of it working. And, if I do not center my UIImageView, everything behaves perfectly. However, I really want the UIImageView to be centered on the screen when the image is sufficiently zoomed out. I do not want it stuck to the top-left corner of the scroll view. Once I attempt to center this view, my vertical scrollable area appears to be greater than it should be. As such, once I zoom in a little, I am able to scroll about 100 pixels past the top of the image. What am I doing wrong? @interface MyPhotoViewController : UIViewController <UIScrollViewDelegate> { UIImage* photo; UIImageView *imageView; } - (id)initWithPhoto:(UIImage *)aPhoto; @end @implementation MyPhotoViewController - (id)initWithPhoto:(UIImage *)aPhoto { if (self = [super init]) { photo = [aPhoto retain]; // Some 3.0 SDK code here to ensure this view has a full-screen // layout. } return self; } - (void)dealloc { [photo release]; [imageView release]; [super dealloc]; } - (void)loadView { // Set the main view of this UIViewController to be a UIScrollView. UIScrollView *scrollView = [[UIScrollView alloc] init]; [self setView:scrollView]; [scrollView release]; } - (void)viewDidLoad { [super viewDidLoad]; // Initialize the scroll view. CGSize photoSize = [photo size]; UIScrollView *scrollView = (UIScrollView *)[self view]; [scrollView setDelegate:self]; [scrollView setBackgroundColor:[UIColor blackColor]]; // Create the image view. We push the origin to (0, -44) to ensure // that this view displays behind the navigation bar. imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0.0, -44.0, photoSize.width, photoSize.height)]; [imageView setImage:photo]; [scrollView addSubview:imageView]; // Configure zooming. CGSize screenSize = [[UIScreen mainScreen] bounds].size; CGFloat widthRatio = screenSize.width / photoSize.width; CGFloat heightRatio = screenSize.height / photoSize.height; CGFloat initialZoom = (widthRatio > heightRatio) ? heightRatio : widthRatio; [scrollView setMaximumZoomScale:3.0]; [scrollView setMinimumZoomScale:initialZoom]; [scrollView setZoomScale:initialZoom]; [scrollView setBouncesZoom:YES]; [scrollView setContentSize:CGSizeMake(photoSize.width * initialZoom, photoSize.height * initialZoom)]; // Center the photo. Again we push the center point up by 44 pixels // to account for the translucent navigation bar. CGPoint scrollCenter = [scrollView center]; [imageView setCenter:CGPointMake(scrollCenter.x, scrollCenter.y - 44.0)]; } - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; [[[self navigationController] navigationBar] setBarStyle:UIBarStyleBlackTranslucent]; [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleBlackTranslucent animated:YES]; } - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; [[[self navigationController] navigationBar] setBarStyle:UIBarStyleDefault]; [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleDefault animated:YES]; } - (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView { return imageView; } @end

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  • Is there an high quality natural text reader for the mac?

    - by Another Registered User
    I'm reading about 150 pages of text on screen, every day. I will have to read about 15.000 in the next upcoming months. No joke. Well, the problem is this: I suffer from a sort of attention deficit hyperactivity disorder which forces me to read every sentence up to 10 times until I really get it. Mac OS X Snow Leopard has a built-in text reader with the name "Alex". Although it is already pretty good quality, I know there are far better natural sounding voices out there. I have heard already voices that are absolutely amazing compared to Alex. They're so good, that you can't tell anymore the difference between a real person or a computer. Alex still has this "metal factor" in its voice, which makes my ears hurt after 8 hours of listening. The next problem with Alex is, that he never makes a break after a sentence. Also, it's not possible to think about a sentence and then continue reading. It's also not possible to have him repeat a sentence, without tedious text selection and shortcut usage. Actually, the best tool I can imagine would have the option to read a sentence and move on to the next one after pressing a special key, OR repeating the previously one after pressing a special key. That would help so much! And if that's even with one of those bell lab / AT&T / whatever super-natural voices, even better! But it would be already a great relief if there was just a better tool to control Alex. To let him make breaks after sentences or let him speak big chunks of text sentence-by-sentence with fine-grained control over repetition and moving on. Is there anything?

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  • UIView's frame, bounds, center, origin, when to use what?

    - by Boon
    UIView has the concept of frame, bounds, center, and origin, and they all seem to be interrelated. Most of the time, I deal with frame when setting the position and size of a UIView (or subclass). I understand that the frame is using global coordinate system and the bounds is using coordinate of the local view (therefore it's x and y are 0, but not always), but it's still confusing to me when to use what. Question: Under what context (and what's the right time) the other properties (bounds, center, origin) should be used?

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  • Native ComboBox not displaying choices correctly

    - by anothershrubery
    EDIT: It seems that ListPicker is the way to go but I have had further problems with that detailed Microsoft.Phone.Controls.Toolkit ListPicker throws XamlParseException I have the following ComboBox in code: <ComboBox x:Name="Result" Grid.Column="6" HorizontalAlignment="Center" VerticalAlignment="Center" Foreground="Black" Background="White"> <ComboBoxItem Content="Win" /> <ComboBoxItem Content="Place" /> <ComboBoxItem Content="Lose" /> </ComboBox> But it does not display as I would have expected. When you drop down the ComboBox the options don't appear, it's just like empty items. See below: However, when an item is selected, it displays correctly and the correct index/item is returned. See below: I'm sure there is something simple I have missed but can't put my finger on it. EDIT: Ok I am posting the full code for this. I have a user control, OddsRow, that looks like this: <UserControl xmlns:toolkit="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls.Toolkit" x:Class="MojoPinBetOddsCalculator.OddsRow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" FontFamily="{StaticResource PhoneFontFamilyNormal}" FontSize="{StaticResource PhoneFontSizeNormal}" Foreground="{StaticResource PhoneForegroundBrush}" d:DesignHeight="480" d:DesignWidth="480"> <Grid x:Name="LayoutRoot" Background="{StaticResource PhoneChromeBrush}"> <Grid.RowDefinitions> <RowDefinition Height="70"/> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="50*"></ColumnDefinition> <ColumnDefinition Width="70*"></ColumnDefinition> <ColumnDefinition Width="30*"></ColumnDefinition> <ColumnDefinition Width="70*"></ColumnDefinition> <ColumnDefinition Width="70*"></ColumnDefinition> <ColumnDefinition Width="70*" ></ColumnDefinition> <ColumnDefinition Width="100*"></ColumnDefinition> </Grid.ColumnDefinitions> <TextBlock x:Name="RowNumber" Grid.Column="0" VerticalAlignment="Center" HorizontalAlignment="Center"></TextBlock> <TextBox x:Name="OddsNumerator" Grid.Column="1" Width="90" Height="70" HorizontalAlignment="Center" TextAlignment="Center" VerticalAlignment="Center" MaxLength="3" InputScope="TelephoneNumber"></TextBox> <TextBlock x:Name="Slash" Grid.Column="2" Text="/" HorizontalAlignment="Center" VerticalAlignment="Center"></TextBlock> <TextBox x:Name="OddsDenominator" Grid.Column="3" Width="90" Height="70" VerticalAlignment="Center" TextAlignment="Center" MaxLength="3" HorizontalAlignment="Center" InputScope="TelephoneNumber"></TextBox> <CheckBox x:Name="EachWay" Grid.Column="4" VerticalAlignment="Center" HorizontalAlignment="Center" Margin="10,0,0,0" /> <CheckBox x:Name="Place" Grid.Column="5" HorizontalAlignment="Center" VerticalAlignment="Center" BorderThickness="0" Width="71" Margin="10,0,0,0" Padding="0" /> <ComboBox x:Name="Result" Grid.Column="6" HorizontalAlignment="Center" VerticalAlignment="Center" Foreground="Black" Background="White"> <ComboBoxItem Content="Win" /> <ComboBoxItem Content="Place" /> <ComboBoxItem Content="Lose" /> </ComboBox> </Grid> </UserControl> And it is displayed in the MainPage like so: <phone:PhoneApplicationPage xmlns:my="clr-namespace:MojoPinBetOddsCalculator" x:Class="MojoPinBetOddsCalculator.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone" xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="768" FontFamily="{StaticResource PhoneFontFamilyNormal}" FontSize="{StaticResource PhoneFontSizeNormal}" Foreground="{StaticResource PhoneForegroundBrush}" SupportedOrientations="Portrait" Orientation="Portrait" shell:SystemTray.IsVisible="True"> <!--LayoutRoot is the root grid where all page content is placed--> <Grid x:Name="LayoutRoot" Background="Transparent"> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> <RowDefinition Height="*"/> </Grid.RowDefinitions> <!--TitlePanel contains the name of the application and page title--> <StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28"> <TextBlock x:Name="ApplicationTitle" Text="BET ODDS CALCULATOR" Style="{StaticResource PhoneTextNormalStyle}"/> <TextBlock x:Name="PageTitle" Text="calculate" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/> </StackPanel> <!--ContentPanel - place additional content here--> <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0" HorizontalAlignment="Stretch"> <Grid x:Name="Scrollable"> <ScrollViewer> <Grid x:Name="BettingGrid"> <Grid.RowDefinitions> <RowDefinition Height="Auto"></RowDefinition> <RowDefinition Height="*"></RowDefinition> </Grid.RowDefinitions> <Grid x:Name="BetList"> <Grid.RowDefinitions> <RowDefinition Height="30"></RowDefinition> <RowDefinition Height="70"></RowDefinition> <RowDefinition Height="70"></RowDefinition> <RowDefinition Height="70"></RowDefinition> <RowDefinition Height="70"></RowDefinition> <RowDefinition Height="70"></RowDefinition> <RowDefinition Height="70"></RowDefinition> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="50*"></ColumnDefinition> <ColumnDefinition Width="70*"></ColumnDefinition> <ColumnDefinition Width="30*"></ColumnDefinition> <ColumnDefinition Width="70*"></ColumnDefinition> <ColumnDefinition Width="70*"></ColumnDefinition> <ColumnDefinition Width="70*"></ColumnDefinition> <ColumnDefinition Width="100*"></ColumnDefinition> </Grid.ColumnDefinitions> <TextBlock Text="EW" Style="{StaticResource PhoneTextNormalStyle}" Grid.Row="0" Grid.Column="4" HorizontalAlignment="Center" /> <TextBlock Text="Place" Style="{StaticResource PhoneTextNormalStyle}" Grid.Row="0" Grid.Column="5" HorizontalAlignment="Center" /> <TextBlock Text="Result" Style="{StaticResource PhoneTextNormalStyle}" Grid.Row="0" Grid.Column="6" HorizontalAlignment="Center" /> <my:OddsRow Grid.Row="1" Grid.ColumnSpan="7" Row="1"/> <my:OddsRow Grid.Row="2" Grid.ColumnSpan="7" Row="2"/> <my:OddsRow Grid.Row="3" Grid.ColumnSpan="7" Row="3"/> <my:OddsRow Grid.Row="4" Grid.ColumnSpan="7" Row="4"/> <my:OddsRow Grid.Row="5" Grid.ColumnSpan="7" Row="5"/> <my:OddsRow Grid.Row="6" Grid.ColumnSpan="7" Row="6"/> </Grid> <Grid x:Name="ControlsGrid" Grid.Row="1"> <Button x:Name="AddRowButton" Background="#BFFFFFFF" BorderBrush="#BFFFFFFF" Foreground="Black" Content="Add Row" FontSize="16" Click="AddRowButton_Click" Height="70" /> </Grid> </Grid> </ScrollViewer> </Grid> </Grid> </Grid> </phone:PhoneApplicationPage> Separately the ComboBox works, and also the code for the OddsRow works as expected... separately. When combined it doesn't display the items. OddsRow.xaml.cs public partial class OddsRow : UserControl { private int m_Row; public OddsRow() { InitializeComponent(); } public int Row { get { return m_Row; } set { m_Row = value; RowNumber.Text = m_Row + " - "; } } }

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  • CSS - How can I center a div within a div?

    - by Spines
    I have an outer div that is 800px wide. I have an inner div that could be anywhere from 200 to 600px wide. I know how to center the inner div within the outer one if I set the inner one to have a specific width, but how do I center it since its a variable width? Is there a way to set the div to only be the width of the elements inside of it, rather than having it expand to fill its containing div?

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  • How to create a high quality icon for my Windows application?

    - by Patrick Klug
    If you are running Windows with a higher DPI setting you will notice that most application icons on the desktop look terrible. Even high profile application icons such as Google Chrome look terrible while for example Firefox, Skype and MS Office icons look sharp: (example) I suspect that most icons look blurry because a lower resolution icon is scaled up rather than using a higher resolution icon. I want to give my application a high quality icon and can't seem to convince Windows to use the higher resolution icon. I have created a multi-resolution icon with the free icon editor IcoFX. The icon is provided in 16x16, 24x24, 32x32,48x48, 128x128 and 256x256 (!) (all in 32 bit including alpha channel) yet Windows seems to use the 128x128 version of the icon on the desktop and scale it up which looks terrible. (I am using Windows 7 - 64 bit - the icon is placed by means of setting up a shortcut in the msi (created via Visual Studio 2008 Setup Project) and pointing it to the .ico file that contains the multi-resolution icon) I have tried removing the 128x128 icon but to no avail. Interestingly in Windows Explorer the icon looks great even when using the Extra Large Icon setting. How can I create a high quality desktop icon that looks great on higher DPI settings on Windows?

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